\documentclass{amsart}
%=================================================================
% for comments
\newcount\DraftStatus  % 0 suppresses notes to selves in text
\DraftStatus=1   % TODO: set to 0 for final version
%=================================================================
\usepackage{color}
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% add yourself here:
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%other colors include blue, red, purple, cyan, darkgreen, etc.
%=================================================================

%=================================================================
% for Version control information
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%
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$} {$LastChangedDate: 2009-06-20 22:21:59 +0800 (Sat, 20 Jun 2009)
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%=================================================================

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% THEOREMS -------------------------------------------------------
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% MATH -----------------------------------------------------------
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%=================================================================

%=================================================================
% general packages
\usepackage{graphicx,color}
\usepackage{algorithm}
\usepackage{algorithmic}
\usepackage{amsmath, amssymb}
\usepackage{eqnarray}
\usepackage{breqn}
\usepackage{multirow}
\usepackage{subfig}
\usepackage{cite}

%=================================================================

\begin{document}

\begin{figure}[ht]
\begin{center}
  \centerline{\includegraphics[width=0.33\textwidth{figures_A.jpg}\includegraphics[width=0.33\textwidth]{retrieval.eps}}\\
  \caption{(a)Original Image; (b)Retrieval Image }
  \label{fig:comp}
\end{center}
\end{figure}
\end{document}
